datasource db {
    provider = "postgresql"
    url      = env("DATABASE_URL")
}

generator client {
    provider = "prisma-client-js"
}

model User {
    id           String        @id @default(uuid())
    pubkey       String        @unique
    username     String?       @unique
    avatar       String?
    purchased    Purchase[]
    courses      Course[]
    resources    Resource[]
    courseDrafts CourseDraft[]
    drafts       Draft[]
    role         Role?
    createdAt    DateTime      @default(now())
    updatedAt    DateTime      @updatedAt
}

model Role {
    id           String    @id @default(uuid())
    user         User      @relation(fields: [userId], references: [id])
    userId       String    @unique
    subscribed           Boolean   @default(false)
    admin                Boolean   @default(false)
    subscriptionStartDate DateTime?
    lastPaymentAt         DateTime?
    subscriptionExpiredAt DateTime?
    nwc                String?
}

model Purchase {
    id         String    @id @default(uuid())
    user       User      @relation(fields: [userId], references: [id])
    userId     String
    course     Course?   @relation(fields: [courseId], references: [id])
    courseId   String?
    resource   Resource? @relation(fields: [resourceId], references: [id])
    resourceId String?
    amountPaid Int
    createdAt  DateTime  @default(now())
    updatedAt  DateTime  @updatedAt
}

model Lesson {
    id         String   @id @default(uuid())
    courseId   String?
    course     Course?  @relation(fields: [courseId], references: [id])
    resourceId String?
    resource   Resource? @relation(fields: [resourceId], references: [id])
    draftId    String?
    draft      Draft?   @relation(fields: [draftId], references: [id])
    index      Int
    createdAt  DateTime @default(now())
    updatedAt  DateTime @updatedAt
}

model DraftLesson {
    id            String      @id @default(uuid())
    courseDraftId String
    courseDraft   CourseDraft @relation(fields: [courseDraftId], references: [id])
    resourceId    String?
    resource      Resource?   @relation(fields: [resourceId], references: [id])
    draftId       String?
    draft         Draft?      @relation(fields: [draftId], references: [id])
    index         Int
    createdAt     DateTime    @default(now())
    updatedAt     DateTime    @updatedAt
}

model Course {
    id        String     @id
    userId    String
    user      User       @relation(fields: [userId], references: [id])
    price     Int        @default(0)
    lessons   Lesson[]
    purchases Purchase[]
    noteId    String?    @unique
    createdAt DateTime   @default(now())
    updatedAt DateTime   @updatedAt
}

model Resource {
    id        String     @id // Client generates UUID
    userId    String
    user      User       @relation(fields: [userId], references: [id])
    lessons   Lesson[]
    draftLessons DraftLesson[]
    price     Int        @default(0)
    purchases Purchase[]
    noteId    String?    @unique
    createdAt DateTime   @default(now())
    updatedAt DateTime   @updatedAt
}


model Draft {
    id              String        @id @default(uuid())
    userId          String
    user            User          @relation(fields: [userId], references: [id])
    type            String
    title           String
    summary         String
    content         String
    image           String?
    price           Int?          @default(0)
    topics          String[]
    additionalLinks String[]
    createdAt       DateTime      @default(now())
    updatedAt       DateTime      @updatedAt
    draftLessons    DraftLesson[]
    lessons         Lesson[]
}

model CourseDraft {
    id           String        @id @default(uuid())
    userId       String
    user         User          @relation(fields: [userId], references: [id])
    draftLessons DraftLesson[]
    title        String
    summary      String
    image        String?
    price        Int?          @default(0)
    topics       String[]
    createdAt    DateTime      @default(now())
    updatedAt    DateTime      @updatedAt
}